Chevrolet LS3/LS7 50mm DBW Throttle bodies & ECU Package

These Chevrolet LS3/LS7 50mm DBW Throttle Bodies feature AT Power's unique Shaftless Technology, interfacing perfectly to the LS Cylinder Heads utilizing Gardner Douglas’s bespoke billet inlet manifolds. This system utilizes our 'shaftless' knife-edged butterflies providing both improved airflow & performance. With the Throttle blades being close to the inlet valves of the engine, throttle response is significantly improved with a superior idle control over other individual throttle bodies (ITB’s).

With Drive-by-Wire throttle control, these kits include everything you may need to convert your LS engine to an ITB setup. The DBW control utilizes the standard OEM throttle body which modifies this into the actuation unit, this unit can either be sent to Gardner Douglas to make the required changes, or Gardner Douglas can provide full details of how to make this modification.

Delivered fully assembled with billet aluminum fuel rails and a choice of inlet lengths, along with a range of 18 anodised colour options. Available as a complete DBW kit with Canems engine management system providing significant power gains.

This kit is designed to work both with the OEM injectors, or aftermarket injectors which can also be provided upon request if you wish to upgrade engine fueling.

This product has been developed in conjunction with Gardner Douglas Sports Cars (UK) for use in their GD4 AC Cobra, this kit offers both an increase in horsepower and mid-range torque, along with the drivability and amazing soundtrack that come with running on AT Power’s ITB’s.

Dyno testing for this kit was done at John Sleath Race Cars Ltd (UK), testing showed gains in both horsepower, mid-range torque and drivability, along with their feedback that the product was very tunable with great idle control.

This product requires mechanical and electrical setup’s, so we recommended that you have this product installed professionally.

This product is only available directly through Gardner Douglas Sports Cars (UK)

For more information about this product and the available options contact:

Gardner Douglas Sports Cars Ltd

Retro House,

Swingbridge Road,


NG31 7XT


Phone: +44 (0)1476 567180




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